20 point full workings to 3 questions. Full as answers already shown.
1st; Basic integration
2nd; Gradients and Perpendiculars
3rd; Solving inequalities
Explain or show workings to these 3 questions.

Look at attachment. has all info needed. need

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice